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[Bug 1500673] Re: gdm unusable after upgrading to 15.10


Can anyone still affected by this please attach the output of
`journalctl`. Saying that your system boots to a blank screen is not
particularly helpful, there there could be numerous reasons causing
that, such as hardware specific driver bugs, dependency issues etc.

The recommended way to run GNOME desktop is to install:
sudo apt-get install ubuntu-gnome-desktop^
While installing the bits and pieces standalone should work, it doesnt get anywhere near as much testing as the complete packageset above.

re Wayland comments:
The gdm wayland greeter is not available by default and gdm automatically falls back to the X backend in this case (so no need to mess with custom.conf here). if you want to use gdm wayland or just wayland in general you must install: gnome-session-wayland , xwayland by itself is not enough.

I have no idea why this package being missing would affect gdm. Though if it is indeed the schema overrides that fixes it perhaps it is caused by the ubuntu overlay scrollbars or otherwise one of the default settings points to a missing file/font perhaps.
This package is pulled in by default when using ubuntu-gnome-desktop

** Also affects: ubuntu-gnome
   Importance: Undecided
       Status: New

** Changed in: ubuntu-gnome
    Milestone: None => xenial

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  gdm unusable after upgrading to 15.10

Status in One Hundred Papercuts:
Status in Ubuntu GNOME:
Status in gdm package in Ubuntu:
Status in gdm source package in Wily:

Bug description:
  Hi there -- I figured I'd try 15.10 a few days before release, and
  when gdm is the default greeter, I see no login prompt and I have to
  CTRL-ALT-F1 to get to a terminal. As far as I can tell, there's
  nothing interesting in the logs in /var/log or /var/log/gdm. I just
  get a blank, black screen.

  As a side note, I'm seeing the error messages described in
  https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1492764, but I
  don't think they are the root cause for a missing X-server (AFAICT,
  there's no X server starting).

  Please advice on how I can troubleshoot further. `dkg-reconfigure gdm`
  and choosing lightdm yields a GUI login prompt in lightdm.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: gdm 3.16.2-0ubuntu2
  ProcVersionSignature: Ubuntu 4.2.0-11.13-generic 4.2.1
  Uname: Linux 4.2.0-11-generic x86_64
  ApportVersion: 2.19-0ubuntu1
  Architecture: amd64
  Date: Mon Sep 28 20:15:50 2015
  InstallationDate: Installed on 2014-07-02 (453 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
  SourcePackage: gdm
  UpgradeStatus: Upgraded to wily on 2015-09-29 (0 days ago)

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